Q: Is 1,397,504 a Prime Number?
A: No, 1,397,504 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1397504 can be evenly divided by 1 2 4 8 16 32 53 64 103 106 128 206 212 256 412 424 824 848 1,648 1,696 3,296 3,392 5,459 6,592 6,784 10,918 13,184 13,568 21,836 26,368 43,672 87,344 174,688 349,376 698,752 and 1,397,504, with no remainder.
Since 1,397,504 cannot be divided by just 1 and 1,397,504, it is not a prime number.